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#!/bin/bash
# pr-ascii.sh: Prints a table of ASCII characters.
START=33 # Range of printable ASCII characters (decimal).
END=127 # Will not work for unprintable characters (> 127).
echo " Decimal Hex Character" # Header.
echo " ------- --- ---------"
for ((i=START; i<=END; i++))
do
echo $i | awk '{printf(" %3d %2x %c\n", $1, $1, $1)}'
# The Bash printf builtin will not work in this context:
# printf "%c" "$i"
done
exit 0
# Decimal Hex Character
# ------- --- ---------
# 33 21 !
# 34 22 "
# 35 23 #
# 36 24 $
#
# . . .
#
# 122 7a z
# 123 7b {
# 124 7c |
# 125 7d }
# Redirect the output of this script to a file
#+ or pipe it to "more": sh pr-asc.sh | more
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